<template>
  <div>
    <div style="margin: 10px 0">
      <el-input style="width: 200px" placeholder="请输入名称" suffix-icon="el-icon-search" v-model="queryForm.roleName"></el-input>
      <el-button class="ml-5" type="primary" @click="load">搜索</el-button>
      <el-button type="warning" @click="reset">重置</el-button>
    </div>

    <div style="margin: 10px 0">
      <el-button type="primary" plain @click="handleAdd"><i class="el-icon-circle-plus-outline"></i> 新增</el-button>
      <!-- <el-popconfirm
          class="ml-5"
          confirm-button-text='确定'
          cancel-button-text='我再想想'
          icon="el-icon-info"
          icon-color="red"
          title="您确定批量删除这些数据吗？"
          @confirm="delBatch"
      >
        <el-button type="danger" slot="reference">批量删除 <i class="el-icon-remove-outline"></i></el-button> -->
      <!-- </el-popconfirm> -->
    </div>

    <el-table :data="tableData"  :header-cell-class-name="'headerBg'"  @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55"></el-table-column>
      <!-- <el-table-column prop="id" label="ID" width="80"></el-table-column> -->
      <el-table-column prop="roleName" label="名称"></el-table-column>
      <el-table-column prop="flag" label="唯一标识"></el-table-column>
      <el-table-column prop="description" label="描述"></el-table-column>
      <el-table-column prop="createTime" label="创建时间"></el-table-column>
      <el-table-column label="操作"  width="280" align="center">
        <template slot-scope="scope">
          <el-button type="text" @click="selectMenu(scope.row)"><i class="el-icon-menu"></i>分配菜单</el-button>
          <el-button type="text" @click="handleEdit(scope.row)"><i class="el-icon-edit"></i>编辑</el-button>
          <el-popconfirm
              class="ml-5"
              confirm-button-text='确定'
              cancel-button-text='我再想想'
              icon="el-icon-info"
              icon-color="red"
              title="您确定删除吗？"
              @confirm="del(scope.row.id)"
          >
            <el-button type="text" slot="reference"><i class="el-icon-delete"></i>删除</el-button>
          </el-popconfirm>
        </template>
      </el-table-column>
    </el-table>
    <div style="padding: 10px 0">
      <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="pageNum"
          :page-sizes="[2, 5, 10, 20]"
          :page-size="pageSize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
      </el-pagination>
    </div>

    <!-- 添加框 -->
    <el-dialog title="角色信息" :visible.sync="dialogFormVisible" width="27%" >
      <el-form label-width="100px" size="small" :model="form" :rules="rules">
        <el-form-item label="名称" prop="roleName">
          <el-input v-model="form.roleName" autocomplete="off" style="width: 200px;"></el-input>
        </el-form-item>
        <el-form-item label="唯一标识" prop="flag">
          <el-input v-model="form.flag" autocomplete="off" style="width: 200px;"></el-input>
        </el-form-item>
        <el-form-item label="描述" prop="description">
          <el-input v-model="form.description" autocomplete="off" style="width: 200px;"></el-input>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="save">确 定</el-button>
        <el-button @click="dialogFormVisible = false">取 消</el-button>
      </div>
    </el-dialog>

    <!-- 修改框 -->
    <el-dialog title="角色信息" :visible.sync="dialogFormVisibles" width="27%" >
      <el-form label-width="100px" size="small" :model="form" :rules="rules">
        <el-form-item label="名称" prop="roleName">
          <el-input v-model="form.roleName" autocomplete="off" style="width: 200px;"></el-input>
        </el-form-item>
        <el-form-item label="唯一标识" prop="flag">
          <el-input v-model="form.flag" autocomplete="off" style="width: 200px;"></el-input>
        </el-form-item>
        <el-form-item label="描述" prop="description">
          <el-input v-model="form.description" autocomplete="off" style="width: 200px;"></el-input>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="update">确 定</el-button>
        <el-button @click="dialogFormVisibles = false">取 消</el-button>
      </div>
    </el-dialog>

    <!-- 菜单分配框 -->
  <el-dialog title="菜单分配" :visible.sync="menuDialogVis" width="30%">
    <!-- node-value="mname" -->
  <el-tree
    :props="props"
    :data="menuData"
    show-checkbox
    node-key="id"
    ref="tree"
    :default-expanded-keys="expends"
    :default-checked-keys="checks"
  >
    <template slot-scope="{ node, data }">
      <span class="custom-tree-node">
        <i :class="data.icon"></i> {{ data.mname }}
      </span>
    </template>
  </el-tree>
  <div slot="footer" class="dialog-footer">
    <el-button type="primary" @click="saveRoleMenu">确 定</el-button>
    <el-button @click="menuDialogVis = false">取 消</el-button>
  </div>
</el-dialog>


  </div>
</template>

<script>

export default {
  name: "Role",

  data() {
    return {
      tableData: [],
      total: 0,
      pageNum: 1,
      pageSize: 10,
      mname: "",
      form: {},
      queryForm:{
        roleName: '',
      },
      dialogFormVisible: false,
      dialogFormVisibles: false,
      menuDialogVis: false,
      multipleSelection: [],
      menuData: [],
      props: {
        label: 'mname',
      },
      expends: [],
      checks: [],
      roleId: 0,
      roleFlag: '',
      ids: [],
      names:'',
      rules: {
        roleName: [
        { required: true, message: '名称不能为空', trigger: 'blur' }
        ],
        flag: [
        { required: true, message: '标识不能为空', trigger: 'blur' }
        ],
        description: [
        { required: true, message: '描述不能为空', trigger: 'blur' }
        ],
      }
    }
  },
  created() {
    this.load();
    
  },
  methods: {
    load(){
      this.request.get("/Role/RoleList",{
        params:{
          pageNum:this.pageNum,
          pageSize:this.pageSize,
          roleName:this.queryForm.roleName,
        }
      }).then(res => {
        // console.log(res);
        this.tableData = res.data.content
        this.total = res.data.totalSize
      })

      this.request.get("/Menu/ids").then(r => { 
        this.ids = r.data
      })

    },
    save(){
      this.$refs['form'].validate((valid) => {
      if (valid) {
    this.request(
      {
        method: "post",
        url: "/Role/RoleAdd",
        data:{
          "id": this.form.id,
          "roleName": this.form.roleName,
          "description": this.form.description,
          "flag": this.form.flag,
          "createTime": this.form.createTime,
        },
        //请求头
        headers: { 'Content-Type': 'application/json' },
      }).then(res => {
        if(res){//.code === 200
          this.$message.success("保存成功")
          this.dialogFormVisible = false
          this.load()
        }else{
          this.$message.error("保存失败")
       }
      })
    } else {
      // 校验失败，不执行保存修改操作
    }
  });
  },
  update(){
    this.$refs['form'].validate((valid) => {
      if (valid) {
    this.request(
      {
        method: "post",
        url: "/Role/RoleUpdate",
        data:{
          "id": this.form.id,
          "roleName": this.form.roleName,
          "description": this.form.description,
          "flag": this.form.flag,
        },
        //请求头
        headers: { 'Content-Type': 'application/json' },
      }).then(res => {
        if(res){//.code === 200
          this.$message.success("修改成功")
          this.dialogFormVisibles = false
          this.load()
        }else{
          this.$message.error("修改失败")
       }
      })
    } else {
      // 校验失败，不执行保存修改操作
    }
  });
  },
    saveRoleMenu() {
      this.request.post("/Role/roleMenu/" + this.roleId, this.$refs.tree.getCheckedKeys()).then(res => {
        if (res) {
          this.$message.success("绑定成功")
          this.menuDialogVis = false

          // 操作管理员角色后需要重新登录
          if (this.roleFlag === 'ROLE_ADMIN') {
            this.$router.push("/login")
            localStorage.removeItem("user")
            this.$message.success("退出成功")
          }

        } else {
          this.$message.error("绑定失败")
        }
      })
    },
    handleAdd() {
      this.dialogFormVisible = true
      this.form = {}
    },
    handleEdit(row) {
      this.form = JSON.parse(JSON.stringify(row))
      this.dialogFormVisibles = true
    },
    del(id){
    this.request.delete("/Role/RoleDelete" ,{
        params:{
         id:id
        }
      }).then(res =>{
      if(res){
        this.$message.success("删除成功")
        this.load()
      }else{
        this.$message.error("删除失败")
      }
    })
  },
    handleSelectionChange(val) {
      // console.log(val)
      this.multipleSelection = val
    },
    // delBatch() {
    //   let ids = this.multipleSelection.map(v => v.id)  // [{}, {}, {}] => [1,2,3]
    //   this.request.post("/role/del/batch", ids).then(res => {
    //     if (res.code === '200') {
    //       this.$message.success("批量删除成功")
    //       this.load()
    //     } else {
    //       this.$message.error("批量删除失败")
    //     }
    //   })
    // },
    reset() {
      this.queryForm.roleName = ""
      this.load()
    },
    handleSizeChange(pageSize) {
      // console.log(pageSize)
      this.pageSize = pageSize
      this.load()
    },
    handleCurrentChange(pageNum) {
      // console.log(pageNum)
      this.pageNum = pageNum
      this.load()
    },
    async selectMenu(role) {
      this.menuDialogVis = true
      this.roleId = role.id
      this.roleFlag = role.flag

      // 请求菜单数据
      this.request.get("/Menu/findAll").then(res => {
        this.menuData = res.data
        this.menuData.forEach(item => {
    })
        // console.log(this.menuData)
        // 把后台返回的菜单数据处理成 id数组
        this.expends = this.menuData.map(v => v.id)
        
      })

      //刷新后清空选中的菜单
      this.checks = []
      // 请求角色已经绑定的菜单
      this.request.get("/Role/roleMenu/" + this.roleId).then(res => {
        this.checks = res.data
        this.ids.forEach(id => {
          if (!this.checks.includes(id)) {
            // 可能会报错：Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'setChecked')
            this.$nextTick(() => {
              this.$refs.tree.setChecked(id, false)
            })
          }
        })
        this.menuDialogVis = true
      })
    },
  }
}
</script>


<style>
.headerBg {
  background: #eee!important;
}
</style>
